diff options
| author |   Drew Schmitt <dasch@google.com> | 2018-08-20 10:32:14 -0700 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2018-09-20 00:51:46 +0200 |
| commit | d84f1cff9028c00ee870f0293b0c7a3866071dfa (patch) | |
| tree | 826de97fdedadafccc68102de820da2233801c15 /arch | |
| parent | nVMX x86: Check VPID value on vmentry of L2 guests (diff) | |
| download | linux-dev-d84f1cff9028c00ee870f0293b0c7a3866071dfa.tar.xz linux-dev-d84f1cff9028c00ee870f0293b0c7a3866071dfa.zip | |
KVM: x86: Turbo bits in MSR_PLATFORM_INFO
Allow userspace to set turbo bits in MSR_PLATFORM_INFO. Previously, only
the CPUID faulting bit was settable. But now any bit in
MSR_PLATFORM_INFO would be settable. This can be used, for example, to
convey frequency information about the platform on which the guest is
running.
Signed-off-by: Drew Schmitt <dasch@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 5fea53cdc583..e127703e277e 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2537,7 +2537,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info) break; case MSR_PLATFORM_INFO: if (!msr_info->host_initiated || - data & ~MSR_PLATFORM_INFO_CPUID_FAULT || (!(data & MSR_PLATFORM_INFO_CPUID_FAULT) && cpuid_fault_enabled(vcpu))) return 1; |